require 'spec_helper' describe 'Veritas::Relation::Operation::Order#each' do subject { order.each { |tuple| yields << tuple } } let(:relation) { Relation.new([ [ :id, Integer ] ], [ [ 1 ], [ 2 ], [ 3 ] ]) } let(:directions) { [ relation[:id].desc ] } let(:order) { Relation::Operation::Order.new(relation, directions) } let(:yields) { [] } it { should equal(order) } it 'yields each tuple in order' do expect { subject }.to change { yields.dup }.from([]).to([ [ 3 ], [ 2 ], [ 1 ] ]) end end